Hostname: page-component-8448b6f56d-sxzjt Total loading time: 0 Render date: 2024-04-16T23:15:49.547Z Has data issue: false hasContentIssue false
  • English
  • Français

Reconstruction of Precipitation in Morocco Since 1100 A.D. Based on Cedrus Atlantica Tree-Ring Widths

Published online by Cambridge University Press:  20 January 2017

Claudine Till  and
Joël Guiot
Claudine Till
Affiliation:
Université Catholique de Louvain, Laboratoire de Palynologie et de Dendrochronologie, Place Croix-du-Sud 4, B-1348 Louvain-la-Neuve, Belgium
Joël Guiot
Affiliation:
Université d'Aix-Marseille III, Laboratoire de Botanique historique et Palynologie, CNRS UA 1152, Rue Henri Poincaré, F-13397 Marseille Cedex 13, France
Get access Rights & Permissions [Opens in a new window]

Abstract

Annual (October through September) precipitation from 1100 A.D. to modern times is reconstructed for Morocco, using Cedrus atlantica (Endl.) Carrière tree-ring chronologies. Both multiple regression on principal components and the bootstrap method are use to calibrate tree-ring width with precipitation; precipitation variation is reconstructed for three climatically distinct areas: the humid, subhumid, and arid regions of Morocco. A series of successive wet and dry periods is identified for the past 1000 years; the maximum length of the 13 dry periods (during which precipitation was at least 1σ below normal) is 6 years. Twenty-one years are identified during which precipitation fell more than 2σ below normal. We are unable to identify significant correspondence in climatic variation in Morocco, Europe, and the Sahel during this time period.

Type
Articles
Information
Quaternary Research , Volume 33 , Issue 3 , May 1990 , pp. 337 - 351
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Achhal, A. Akabli, O. Barbero, M. Benabid, A. M'Hirit, O. Peyre, C. Quézel, P. Rivas-Martinez, S. A propos de la valeur bioclimatique et dynamique de quelques essences forestières au Maroc. Ecologia Mediterranea 5 1980 211 249 Google Scholar
Alexandre, P. Le climat en Europe au Moyen Age. Contribution à l'histoire des variations climatiques de 1000 à 1425, d'après les sources narritives de l'Europe occidentale 1987 Ecole des hautes Etudes en Sciences Sociales Paris Google Scholar
Benabid, A. Bref aperçu sur la zonation altitudinale de la végétation climacique du Maroc. Ecologia Mediterranea 8 1982 301 315 CrossRefGoogle Scholar
Berger, A. L. Guiot, J. Mathieu, L. Munaut, A. V. Tree-rings and climate in Morocco. Tree-Ring Bulletin 39 1979 61 75 Google Scholar
Blasing, T. J. Fritts, H. C. Reconstructing past climatic anomalies in the North Pacific and Western North America from tree-ring data. Quaternary Research 6 1976 563 579 CrossRefGoogle Scholar
Daget, P. Le bioclimat méditerranéen: analyse des formes par le système d'Emberger. Vegetatio 34 1977 87 124 Google Scholar
Daget, P. David, P. Essai de comparaison de diverses approches climatiques de la méditerranéité. Ecologia Mediterranea 8 1982 33 48 CrossRefGoogle Scholar
De Corte, C. Etude climatologique du Maroc. Unpublished Masters Thesis in Applied Natural Science 1981 Université Catholique de Louvain Louvain-la-Neuve Google Scholar
Efron, B. Bootstrap methods: Another look at the jacknife. Annals of Statistics 7 1979 1 26 CrossRefGoogle Scholar
Emberger, L. Travaux de botanique et d'écologie 1971 Masson Paris Google Scholar
Fairbridge, R. W. Effects of Holocene Climatic Change on Some Tropical Geomorphic Processes. Quaternary Research 6 1976 529 556 Google Scholar
Faure, H. Gac, Y. Will the Sahelian drought end in 1985?. Nature (London) 291 1981 475 478 Google Scholar
Fritts, H. C. Tree-Rings and Climate 1976 Academic Press London/New York Google Scholar
Fritts, H. C. Guiot, J. Gordon, G. A. Schweingruber, F. C. Methods for calibration, verification and reconstruction Cook, Kairiukstis, Methods of Dendrochronology 1989 Reidel Dordrecht Google Scholar
Guiot, J. Analyse mathématique de données géophysiques. Applications à la dendroclimatologie. Unpublished Ph.D. Dissertation 1981 Université Catholique de Louvain Louvain-la-Neuve Google Scholar
Guiot, J. The extrapolation of recent climatological series with spectral canonical regression. Journal of Climatology 5 1985 325 335 CrossRefGoogle Scholar
Kutzbach, J. E. Guetter, P. J. On the design of paleoenvironmental data networks for estimating large scale circulation patterns. Quaternary Research 14 1980 169 187 CrossRefGoogle Scholar
Lamb, H. H. Climate: Present, Past and Future. Fundamentals and Climate Now 1972 Methuen London Google Scholar
Lorenz, E. N. Empirical Orthogonal Functions and Statistical Weather Prediction 1956 MIT Statistical Forecasting Project, Scientific Report 1, Contract AF19(604)-1566 Google Scholar
Lorenz, E. N. An experiment in nonlinear statistical weather forecasting. Monthly Weather Review 105 1977 590 602 Google Scholar
Maley, J. Etudes palynologiques dans le bassin du Tchad et paléoclimatologie de l'Afrique nord-tropicale de 30000 ans à l'époque actuelle 1981 O.R.S.T.O.M Paris Google Scholar
M'Hirit, O. Etude écologique et forestière des cédraies du Rif marocain. Essai sur une approche multidimentionnelle de la phytoécologie et de la productivité du Cèdre (Cedrus atlantica Manetti). Ph.D. Dissertation (Thèse d'Etat) 1982 Université d'Aix-Marseille Marseille Google Scholar
Munaut, A. V. The Mediterranean area Hughes, M. K. Kelly, P. M. Pilcher, J. R. LaMarche, V. C. Climate from Tree-Rings 1982 Cambridge Univ. Press Cambridge 151 153 Google Scholar
Munaut, A. V. Berger, A. L. Guiot, J. Mathieu, L. Dendroclimatological studies on cedars in Morocco Evolution des Atmosphères Planétaires et Climatologie de la Terre 1978 Centre d'Etudes Spatiales Nice 343 379 Google Scholar
Nicholson, S. E. Saharan climate in historic times Williams, M. A. J. Faure, H. The Sahara and the Niles 1980 Balkema Rotterdam 173 200 Google Scholar
Nicholson, S. E. Sub-Saharan drought in the years 1976–1980: Evidence of continued drought. Monthly Weather Review 111 1983 1646 1654 Google Scholar
Peyre, C. Recherches sur l'étagement de la végétation dans le massif du Bou Iblane (Moyen Atlas oriental, Maroc). Unpublished Masters Thesis 1979 Université d'Aix-Marseille Marseille Google Scholar
Quézel, P. La région méditerranéenne française et ses essences forestières. Signification écologique dans le contexte circumméditerranéen. Forêt Méditerranéenee 1 1979 7 18 Google Scholar
Quézel, P. Barbero, M. Definition and characterization of Mediterranean-type ecosystems. Ecologia Mediterranea 8 1982 15 29 Google Scholar
Till, C. Recherches dendrochronologiques sur le Cèdre de l'Atlas (Cedrus atlantica (Endl.) Carrière) au Maroc. Unpublished Ph.D. Dissertation 1985 Université Catholique de Louvain Louvain-la-Neuve Google Scholar
Till, C. Caractéristiques des chronologies de cernes définies sur le Cèdre de l'Atlas (Cedrus atlantica (Endl.) Carrière) au Maroc pour étudier l'évolution des forêts et du climat. Dendrochronologia 5 1987 143 181 Google Scholar
Till, C. The summary response function of Cedrus atlantica (Endl.) Carrière in Morocco. Tree-Ring Bulletin 47 1987 23 36 Google Scholar